Add Luxsin curve API client and validation functionality

- Introduced a new module `curve_client.py` for interacting with the Luxsin curve API, including functions for custom Base64 decoding and parametric EQ validation.
- Implemented error handling for API responses and validation checks for curve data.
- Removed outdated test files to streamline the codebase.
- Updated brand creation and update logic in `brands.py` to ensure brand names are validated and checked for duplicates.
- Enhanced model handling in `models.py` with new validation and push-to-search functionality, integrating curve validation before pushing to Meilisearch.
- Updated frontend components to support new validation and push processes, including user feedback for validation results and progress tracking.
- Changed favicon to SVG format for better scalability and appearance.

frontend/src/api/model.js

@@ -72,13 +72,29 @@ export function deleteModel(id) {
 }
 
 /**
- * 推送到 Meilisearch
+ * 推送前校验曲线数据
+ * @param {Array<number>} modelIds - 型号 ID 列表
+ */
+export function validatePushToMeilisearch(modelIds) {
+  return request({
+    url: '/models/push-to-search/validate',
+    method: 'post',
+    data: { model_ids: modelIds },
+    timeout: 120000,
+    skipErrorToast: true
+  })
+}
+
+/**
+ * 推送到 Meilisearch（需先通过校验）
  * @param {Array<number>} modelIds - 型号 ID 列表
  */
 export function pushToMeilisearch(modelIds) {
   return request({
     url: '/models/push-to-search',
     method: 'post',
-    data: { model_ids: modelIds }
+    data: { model_ids: modelIds },
+    timeout: 60000,
+    skipErrorToast: true
   })
 }